ags

home/ags/node_modules/eslint-plugin-n/lib/util/get-semver-range.js

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+/**
+ * @author Toru Nagashima <https://github.com/mysticatea>
+ * See LICENSE file in root directory for full license.
+ */
+"use strict"
+
+const { Range } = require("semver")
+const cache = new Map()
+
+/**
+ * Get the `semver.Range` object of a given range text.
+ * @param {string} x The text expression for a semver range.
+ * @returns {Range|null} The range object of a given range text.
+ * It's null if the `x` is not a valid range text.
+ */
+module.exports = function getSemverRange(x) {
+    const s = String(x)
+    let ret = cache.get(s) || null
+
+    if (!ret) {
+        try {
+            ret = new Range(s)
+        } catch (_error) {
+            // Ignore parsing error.
+        }
+        cache.set(s, ret)
+    }
+
+    return ret
+}